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By using a _________ rather than a _________ the amplitude of low frequency noise as well as the low frequency components of the ECG will be reduced without affecting the QRS.

By using a _________ rather than a _________ the amplitude of low frequency noise as well as the low frequency components of the ECG will be reduced without affecting the QRS. Correct Answer Band-pass filter, Low-pass filter

The maximum of the QRS energy spectrum is in the vicinity of 10 Hz, the filter is designed to have a bandwidth of about 15 Hz with a centre frequency of 10-12 Hz. By using a bandpass filter rather than a low-pass filter, the amplitude of low frequency noise as well as the low frequency components of the ECG will be reduced without affecting the QRS.

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